PECULIARITIES OF THE SECOND MESIOBUCCAL CANAL IN MAXILLARY FIRST MOLAR: A RETROSPECTIVE ANALYSIS.

First maxillary molar is possibly the most treated and least understood posterior tooth. Deep knowledge of anatomical and topological structure of the MB2 canal at the stage of diagnostics as well as during the course of endodontic treatment can help to decrease the percentage of unsuccessful treatment of the first molar. Clinicians need to be mindful of the possible presence of MB2 canal, which should motivate change in the routine practice of clinical endodontic treatment. Modifications in the endodontic access and detection techniques, as well as advancements in radiographic technique and magnification technology, aids in the location and treatment with the MB2 canal of the first maxillary molar.